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Disclosures Regarding Fair Values Of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2011
Disclosures Regarding Fair Values Of Financial Instruments  
Financial Instruments Other Than Debt Securities
     June 30, 2011      December 31, 2010  
     Carrying
Amount
    

Fair

Value

     Carrying
Amount
    

Fair

Value

 

 

 

Financial assets:

           

Residential mortgage loans

   $ 9,498       $ 9,700       $ 10,720       $ 11,000   

Interest rate swap agreements

     9,356         9,356         9,597         9,597   

Financial liabilities:

           

Repurchase arrangements with initial terms of greater than 120 days

     316,284         316,300                   

Unsecured borrowings

     103,095         105,200         103,095         103,800   

Interest rate swap agreements

     19,962         19,962         16,337         16,337   
Fair Value And Related Disclosures For Debt Securities
            Gross Unrealized         
     Basis      Gains      Losses      Fair Value  

 

 

As of June 30, 2011

           

Agency Securities classified as available-for-sale

   $ 11,196,191       $ 212,005       $ 1,184       $ 11,407,012   

Residential mortgage securities classified as held-to-maturity

     7,651         429                 8,080   

As of December 31, 2010

           

Agency Securities classified as available-for-sale

     8,316,307         181,691         1,317         8,496,681   

Residential mortgage securities classified as held-to-maturity

     8,290         454                 8,744   
Securities In An Unrealized Loss Position
     June 30, 2011      December 31, 2010  
    

Fair

Value

    

Unrealized

Loss

    

Fair

Value

    

Unrealized

Loss

 

 

 

Securities in an unrealized loss position:

           

One year or greater

   $ 232         $        1       $ 1,694         $        2   

Less than one year

     568,989         1,183         334,224         1,315   
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 569,221         $ 1,184       $ 335,918         $ 1,317